Abstract
This paper proposes the use of an array of heat-treated wood of various species to make parametric furniture for the purpose of operation in the exterior, and on objects in conditions of high humidity. The dependence of change in the color range of thermowoods depending on the temperature and duration of treatment is presented. Experiments were carried out to study the biological stability of thermally modified wood treated by various technologies including: vacuum-convective thermal modification in superheated steam, convective thermal modification in high-pressure saturated steam, as well as in hydrophobic liquids, in flue gas and vacuum-conductive thermal-modifying. The degree of resistance of wood was determined, which allows to conclude that the mass losses of heat-treated specimens caused by the destructive action of fungi are significantly lower compared to untreated ones. The researchwas conducted to determine the numerical characteristics of microroughness of the polished surface of wood, thermally modified at different temperatures.
Highlights
This paper proposes the use of an array of heat-treated wood of various species to make parametric furniture for the purpose of operation in the exterior, and on objects in conditions of high humidity
It can be concluded that the thermal modification of wood is, first of all, a compromise between the main and secondary properties of wood, which play a crucial role in the production of the final product
As a result of studies to determine the quality of treatment of the surface of thermal wood, it was found that thermal modification at a temperature of 180 ° C causes a slight decrease in roughness, while thermal modification of sawn timber at a temperature above 180 ° C leads to a significant improvement in the quality of processing and reduction in roughness by more than 2 times . 5, 6)
Summary
This paper proposes the use of an array of heat-treated wood of various species to make parametric furniture for the purpose of operation in the exterior, and on objects in conditions of high humidity. To determine the dependence of the thermal wood color range on the temperature and duration of treatment, oak samples were tested using energy-saving technology for thermally modifying wood in a saturated pair without pre-drying, in which freshly chopped wood with a moisture content of 60% was processed.
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